This is the perfect pump gas head for your Yamaha 701 engine. This gives your ski more power across the board and better cooling as well. These use a stock type head gasket for long time reliability. This is the same profile we have run for over 15 years. Extra power, good reliability, and good looks too. Should give 170-175 psi on a stock engine. 31cc chamber Available with black, blue, red or silver insert on top. and the body is available in black and silver. Email rhaasproducts@gmail.com with color configuration
